Plow



July 20, 1937. G. DEMEULENAERE PLOW Filed March 3, 1936 Patented July20, i937 PLOW Gedeon Demeulenaere, Mitheuil par Monrcnx, FranceApplication March 3; 1936, Serial No. 66,935 In France March 6, 1935Claims.

means whereby the plowshare is subjected to intermittent thrusts bysuccessive impacts of a hammer in addition to the force urging theplowshare forwardly.

It is a furthter object of the invention to provide means whereby theplowshare is subjected to a sequence of impacts in the direction of thenormal forward displacement of the plowshare. A still further object isto provide a plcwshare which is movable with respect to the frame andwhich is subjected to impacts from hammers supported upon the frame.

A still further object of the invention is to provide an anvil upon theplowshare upon which a hammer may strike and the action of the hammer iscontrolled and accomplished by the means moving the plowshare forwardly.

A further object of the invention is to provide a locking devicecontrolling the action of a hammer of a plowshare when such plowshare isat rest.

With the above and other objects in View which will become apparent fromthe detailed description below and from the claims the inventionconsists in the combination of parts more fully set forth below andshown in the drawing, in which Figure 1 is a side view of the new andimproved plowshare.

Figure 2 is a plan view with parts in section thereof, and

Figure 3 is a rear elevational View with parts in section.

Referring to the drawing the plowshare com-- prises a front axlesupported on the wheels l by eccentric means which may be displacedrelative to one another thereby enabling one wheel to be lowered withrelation to the other. The front axle carries a motor casing 2 and abearing member 3. A hook li is provided to which the track means may besecured.

The frame of the plow has a journal which is rotatable in the bearing 3.A rod 6 is secured to the journal 5 and a share carrier l is secured tothe rod 6. A handle 8 is provided upon the The shares t are mounted uponthe carrier 'l by means of the collars iii which enclose the pins i iintegral with the carrier i. By this construction the shares 9 arerendered movable with respect to the carrier l of the frame.

A shaft l2 mounted in the journal 5 and the bearings i3 and ii of theframe is driven by the motor. The shaft i2 has mounted thereon a camtrack i5 cooperating with the two rollers it. A roller land cooperatingmechanism is provided for each share 9.

Each of the rollers It is mounted upon one end of a crank lever il whoseother end is attached by means of links i3 to a rod i9 constituting thehammer. The rod i9 is slidably mounted in the collars 2Q supporte-d onthe carrier i. A spring 2i bears at one end on one of the collars 2@ andat the other end on a shoulder 22 provided on the rod it. An anvil 23integral with each share 9 is so located as to be struck by the free endof the rod i9. The stroke of the share is directed in the direction ofthe motion of the plow by means of a damper 2t. Each share 9 forms ahousing for the parts which constitute the impact and supportingmechanism and thereby prevents any introduction of earth.

In front of each share 9 there is provided a knife 25 which is linked tothe journal 5 and is connected to the corresponding share El by means oflink 26.

When a share 9 is at rest the compression of the springt! is preventedby locking the crank lever I'i.

The operation of the plow is as follows:

It will be assumed that the entire plow is stationary and that the share9 is in its furtherest backward position with respect to the frame..Upon the motor revolving the cam track i5 the roller i@ will bereciprocated along the longitudinal axis of the plow and such motion ofthe rolier i@ will withdraw the rod or hammer I9 backwardly and therebycompress the spring 2i. Upon the termination of the forward motion of aroller i6 due to the cam track i5 there is a release of the roller iiidue to a recess in the cam track. Such release of theroller i5 permitsthe hammer or rod US to be driven forwardly sharply by means of thespring 2 i. The hammer i9 thus strikes the anvil 23 a sharp blow andforces the share 9 to penetrate the earth.

The share 9 is now in the furtherest forward position with respect tothe frame. vShould the share remain in this position relative to theframe then the impacts of the hammer IS would exert no further action onthe share. However if the electric hammer which will operate inaccordance with the principles above set forth.

All modifications such as will come within the spirit of the followingclaims are claimed.

I claim:-

1. A plow comprising a frame, a plowshare movably mounted on said frame,a hammer cooperating with said plowshare and guided on said frame, anabutment on said plowshare, elastic means cooperating with said hammerto urge said hammer against said abutment and means for placing saidelastic means under tension.

2. A plow comprising a frame, a plowshare movably mounted on said frame,a hammer co- Also the impacts upo-n the share operating with saidplowshare and guided oii said frame, an abutment on said plOwshare,elastic means cooperating with said hammer to urge said hammer in adirection parallel to the movement of the plow against said abutment andmeans for placing said elastic means under tension.

3. A plow comprising Va frame, a plowshare movably mounted on saidframe, a hammer cooperating with said plowshare and guided on saidframe, an abutment on said plowshare and means for reciprocating saidhammer against said abutment in a direction parallel to the direction ofmotion of said frame.

4. A plow in accordance with claim l in which means are provided foradvancing said plow, said means being actuated by the source of powerwhich actuates said means for placing said elastic means under tension.

5. A plow in accordance with claim 1 in which means are provided forbolting said hammer when said plowshare is not in action.

GEDEON DEMEULENAERE.

